Broadcast satellite receiver
AssigneeSony Corporation
InventorsKeiko Kitagawa, Osamu Yamakami
Life of this patent
Estimating the term…
Abstract
In a broadcast satellite receiver having a power source circuit for supplying a power source voltage to a tuner circuit through a power switch and a socket or receptacle for connecting an external appliance, such as, a video tape recorder, to the power source circuit; power consumption by the video tape recorder connected through the socket or receptacle to the power source circuit of the receiver is detected, and the power switch is closed for operating the tuner circuit when the detected value of power consumption by the video tape recorder is characteristic of operation of the latter, for example, when the power consumption exceeds by a predetermined amount a previously detected value of power consumption in a standby condition of the video tape recorder.
Claims11
A receiver comprising:
- a power source circuit;
- a tuner circuit;
- power switching means for controlling the supplying of a power source voltage from said power source circuit to said tuner circuit for operating the latter;
- coupling means for connecting an external appliance to said power source circuit of the receiver;
- detecting means for detecting values of power consumption by the external appliance connected through said coupling means to said power source circuit;
- and
- controlling means responsive to said values of power consumption detected by said detecting means for closing said power switching means, and thereby operating said tuner circuit, when the detected value of power consumption exceeds, by a predetermined amount, a previously detected value of power consumption of the external appliance in a standby condition.
A video system comprising a video recorder including a timer for determining a period of operation thereof;
- and a receiver including a power source circuit, a tuner circuit operative to receive a broadcast signal and to provide a video signal to said video recorder, power switching means for controlling the supplying of a power source voltage from said power source circuit to said tuner circuit for operating the latter, coupling means connecting said video recorder to said power source circuit, detecting means for detecting values of power consumption by said video recorder connected through said coupling means to said power source circuit, and controlling means responsive to said values of power consumption detected by said detecting means for closing said power switching means and thereby operating said tuner circuit when the detected value of power consumption is characteristic of an operating condition of said video recorder so that operation of said tuner circuit is made to be simultaneous with said period of operation of the video recorder determined by said timer of the latter.
Dependencies are inferred from the claim text.